Canvas shoe.



S. FRANKENBURG & F. H. BETTERIDGE.

` Y y CANVAS sHoE;

APPLICATION FILE? APR. 4. 1914.

Patented Nov. 16, 1915.

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SYDNEY ERNKENBURG AND FREDERICK HENRY BETTERIDGE, OE SALFORD,

' ENG-LAND.

calmes SHOE.

. Specification of Letters Patent.

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Application mea April 4, i914. seriauvmsaaes'e.'

T 0 all whom t may concern Be it known that we, SYDNEY FRANKEN- BURG and FREDERICK HENRY BETTERIDGE, British subjects, both residing at Salford, county of Lancaster, England, have invented certain new and useful improvements in Canvas Shoes, of which the4 following is a specication. l

This invention relates to canvas and rubber shoes for gymnastic and athletic purposes such as are now made with canvas uppers and rubber soles and either with or withoutagolosh of rubber along the sides.

The object of the invention is to manufacture'througho'ut, at one process, a canvas shoe with impregnated canvas sole.

1t consists, essentially, in forming thel shoe, the upper of canvas and rubber, applying theretowhile lstill unvulcanized an insole of woven fabric, a thin layer of rubber composition, or other vulcanizable material, and one or more plies of woven fabric impregnated with balata, gutta percha, rubber o'r caoutchouc with a vulcanizable. rubber coating between each ply, rolling or pressing the parts together as the-` placed in position, and'nally subjecti g the shoe thus made to a .heat sufficient to vulcan ize the rubber of the shoe and therubber coating between the plies. y

,It will be fully described with reference to the accompanying drawings, in which:

Figure 1 is a side elevation of the shoe,

and Fig. 2 is a longitudinal lsection of same showing the component parts separated.

The-body'of the shoe is built up in the ordinary way of an upper A of canvas, an insole a ofcanvas, and a layer of rubber composition or' other vulcani-'zahle material a',

applied to the .lowersurface of the insole,

and either with or without a golosh a2, but.

or caoutchouc omitted. l

linstead of the ordinary detached sole of with the ordinarv thick sole of sheet yrubber sheet rubber or caoutchouc, separately prepared, we apply a sole B A,of woven Afabric treated or impregnated with balata or gutta percha, or, instead, thev sole B may loe-treated or impregnated with rubberor caoutchouc. l. The sole B `may be o fcanvas or other suitable woven fabric, and ispreferably in two layers b b', the layer b impregnated with rubber and capable of being vulcan-` ber of a highly sticky nature'fandl capable of Y being vulcanized, and upon,.tliis we lay the layer or ply b of the sole Blof impregnated woven material, which is rolled or pressed thereto and caused to adhere, and subsequently the ply b', also witha coating of rubber capable of being vulcanized, is similarly applied. The edges ofthe sole B may be finished olf by a covering of rubber.

v The shoe may be placed in a suitable mold or machineto press the sole B to the shoe.

vThe shoe is cured and finished in the ordinary way. For example, after the plies b and b of impregnated fabric have been appliedl to the shoe, the latter is placed in an ove'n and subjected to heat sufficient to vulcanize the rubber compounds therein. We claim A composite gymnastic or athletic shoe comprising an upper of canvas, an insole of woven fabric, a layer of vulcanized rubber composition integrally united to the lower surface of the insole, and an outer solein tegrally united to the layerof rubber composition by a vulcanizedinterposed layer,- said outer sole consisting of upper and lower layers of woven fabric impregnated with vulcanized gum and integralh united byl an interposed layer of vulcanized gum.

In testimony whereof we have hereunto s et our hands in presence of two subscrib ing witnesses.- v v SYDNEY rlurrrrrtae. p FREDERICK HENRY BETTERIDGE. Witnesses: f

' Gro. H. OBkmrn! HARRY BARNFATHER. 

